This wasn't the solution to the problem.first, the problem happens only on her computer, I can see the buttons when I am logging in with her user and Pass on my computer.second, I changed the permissions to see the effect but when I remove the permission the buttons are still there and I only get an error message that I do not have permissions to add topic\ post response...I do think that this is got something to do with the explorer...any other ideas?

i think even if she was to update to firefox's she is still going to have to update her IE to. because i was have some strange problems with things appearing on one of my websites.but then as soon i as i went from IE7 seven to IE8 Then it worked on both browsers.

So i would recommend asking her to update to IE8 then after that she can update her FireFox as well.

it's a lil hard to explain but technically firefox was built off of IE/Microsoft..